Question

Air containing water vapour is lighter than
dry air. The more water vapour, the lighter
the air. why

Answer 1

Answer:

A water molecule (H2O) has a molecular weight of 18 (1 + 1 + 16). ... This means that when a given volume of air is made more moist by adding water molecules, heavier molecules are replaced with lighter molecules. Therefore, moist air is lighter than dry air if both are at the same temperature and pressure

Explanation:

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Answer 2

Answer:

prefer the above answer